Unexpected result of gmp_pow with huge exponent

[YuanchengJiang]

Description

The following code:

<?php
var_dump(gmp_pow("256", PHP_INT_MAX));

Resulted in this output:

object(GMP)#1 (1) {
  ["num"]=>
  string(8) "16777216"
}

But I expected this output instead:

it should alert an overflow?

Or should have a limit for exponent?

PHP Version

nightly

Operating System

ubuntu 22.04

[devnexen]

There is a related ongoing PR.

[YuanchengJiang]

sure. I will close it